9 16 19  0  0 19 20  2  0 16  9  2  2
 0  2  0  0  0  0  0  2  1  1  0  8  9
 3  2  0  0  0  0  0  0  0  0  3  0  3
 8  0  1 20 20  1  0 16 19  3  8 10  6